Illumination diffuser



FIG. 1 is a perspective view of an illumination diffuser, according to afirst embodiment;

FIG. 2 is a side view of the illumination diffuser, according to a firstembodiment;

FIG. 3 is a top view of the illumination diffuser, according to a firstembodiment;

FIG. 4 is a bottom view of the illumination diffuser, according to afirst embodiment;

FIG. 5 is a perspective view of an illumination diffuser, according to asecond embodiment;

FIG. 6 is a side view of the illumination diffuser, according to asecond embodiment;

FIG. 7 is a top view of the illumination diffuser, according to a secondembodiment; and,

FIG. 8 is a bottom view of the illumination diffuser, according to asecond embodiment.

The broken lines present in the second embodiment (FIGS. 5-8) illustrateportions of the illumination diffuser that form no part of the claimeddesign.

CLAIM The ornamental design for the illumination diffuser, as shown anddescribed.